Metal door



Feb. 25, 1930. H A, STEVENS 1,748,195

METAL DOOR Filed May 14, 1928 ya. teem Patented Feb. 25, 1930 UNITED STATES PATENT OFFICE HERBERT A. STEVENS, OF BERWICK, PENNSYLVANIA, ASSIGNOR T AMERICAN CAR AND FOUNDRY COMPANY, OF NEW YORK, N. Y., A. CORPORATION 0F NEW JERSEY METAL DOOR Application led May 14, 1928. Serial No. 277,553.

This invention relates to metal doors and it is an object of this invention to provide an improved metal door which will be of simple and rugged construction and readily manufactured.

In the drawings:

Figure lis a broken side elevation of metal door construction in accordance with this invention; i

) Fig. 2 is a broken vertical sectional view taken as on the line 2--2 of Fig. 1 showing a door with a modified bottom panel Figs. 3 and 4 are broken horizontal sectional views taken on the lines 3-3 and 4-4, re-

5 spectively, of Fig. 1; and

Fig. 5 is a partial vertical section taken on the-line 5-5 of Fig. 1.

As shown in the drawings, a door constructed in accordance with this invention com l prises the sheets 1 and 2 spaced by the channels 3 and 4 at their upper and lower edges and secured to the inwardly projecting flanges of the channels by screws 5. The vertical edges of the sheets are provided with inwardi ly directed abutting flanges 6, the end portions of which are bent to form oppositely directed flange portions 8 which are engaged by keys 10 to secure the edges of the sheets together. Adjacent the keys 10, channels 12,

l extending between the channels 3 and 4 and having inwardly directed flanges, reinforce the vertical edges of the door, the channels 12 being secured 1n position by tap screws (not shown). The portion of the s eets 1 and 2 forming the bottom rail is further reinforced by plates 13 held in place by strips 14 spot welded to the flanges of the channel 4.

The sheets are formed with a plurality of alined panel openings and adjacent the panel openings the metal of the sheets 1s pressed inwardly forming inwardly offset flanges 16 defining the panel openings. Where solid panels are used as shown in section in Figs. 2 and 4, the panels are formed of sheets 18 and 20 spaced by filler strips 22 shaped to conform to the panel openings. The panels are secured in position by rivets 24 which engage the sheets 18 and 20, filler strips 22 and the flanges 16. To cover the rivet heads, cover strips 26 are inserted between the flanges 16 and sheets 18 and 20. The strips 26 are left, during the riveting operation, with portions which project beyond the edges of the flanges 16 which portions are afterwards bent back so that the cover strips 26 form U-shaped members extending on opposite sides of the flanges 16 and covering the heads of the rivets 24. The portions of the strips 26 between the sheets 1 and 2.adjacent the bottom rail portion of the door are made wide enough to overlap the reinforcing plates 13 to aid in holding the plates 13 in position. Where the panel is made la Ventilating panel, as shown in Figs. 1 and 5, instead of a solid panel, the outer panel sheet 30 will be cut and pressed outwardly to form the openings 32 while the inner panel sheet 34 will be slotted and provided with a slotted `sliding plate36 movable by a knob 38 in guides 40 to control the openings in the panel sheet 34. The panel sheets 30 and 34 will be secured to the flanges 16 as are the panel sheets 18 and 20 and cover strips 26 will be provided as shown.

Where a glass panel is used as shown in Figs. 1, 2 and 3, a panel backing strip is used comprising a metal sheet folded to form a panel backing flange 42 and having one side of the folded sheet bent to provide a web 44 and an offset flange 46 spaced from and parallel to a flange portion 48 of the other side of the folded sheet. A filler strip 22 is inserted between the flange portions 46 and 48. Both the ller strip 22 and the folded metal sheet are shaped to conform tothe panel opening and are secured between the flanges 16 defining the panel opening in sheets 1 and 2 by rivets 50. The glass panel 54 is seated on the web portion 44 and backed by the flange 42 and secured in position by the glass retaining strip 56 attached to a Harige 16 by tap screws 58. On the side of the door which receives the glass retaining strip 56 a cover strip 26 is not used, while on the other side of the door a cover strip 26 is used to cover the rivet heads, this being applied as previously described.

The door may be provided with a lock 60, as shown in broken lines in Fig. 1, and with hinges 62, the sheets 1 and 2 being slotted and portions of the web of channel 12 being cut away to receive the hinge straps which are attached by ta screws 64 to hinge tap strips 66 welded 1n t e channels 12.

It is tojbe'understood that the drawings 5 herein are for illustrative pur oses only and thatl various changes in t e orm and proportions of the device may be made within the scope of the appended claims without de arting from the spirit of the invention. at 1s claimed is:

` 1. The combination in a door comprising spaced sheets having panel openin s, rein-y forcing plates for said sheets, a pane in said openings, securing means engaging said panel and sheets and cover strips held by sa1d securing means and covering said securing means, said cover strips aiding in positioningsaid reinforcing plates.

2. The combination in a door comprising spaced sheets having panel openings, a panel in said openings, securing` means engaging said panel and sheets, reinforcing plates for said sheets and cover strips engaging on opposite sides of said sheets at said panel openings, said cover strips covering said securing means and holding said reinforcing plates in position.

3. In a door, a rail forming one side of a panel opening, a reinforcing plate for said rail, a panel in said opening, securing means engaging said rail and panel, and a cover strip for said securing means aiding in positioning said reinforcing plate.

4. In a door, a rail forming one side of a panel opening, a reinforcing plate for said rail, a panel in said opening, securing means engagingl said rail and panel and a cover strip for said securing'means fastened between said rail and panel, said cover strip 4o aiding in positioning said reinforcing plate. In Witness whereof I have hereunto set myl hand.

HERBERT A. STEVENS. 

